Complete folder anatomy for all 649 cybersecurity skills + update LICENSE to Mahipal

- Add scripts/agent.py and references/api-reference.md to all remaining skills
- Update all 648 LICENSE files: copyright now reads 'Mahipal'
- Add implementing-security-monitoring-with-datadog (new skill with full anatomy)
- All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md

skills/performing-kubernetes-etcd-security-assessment/references/api-reference.md

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+# API Reference — Performing Kubernetes etcd Security Assessment
+
+## Libraries Used
+- **subprocess**: Execute kubectl, etcdctl commands
+- **json**: Parse Kubernetes API resource output
+- **re**: Extract etcd server URLs from API server arguments
+
+## CLI Interface
+```
+python agent.py [--kubeconfig ~/.kube/config] encrypt
+python agent.py access --endpoint https://127.0.0.1:2379 [--cert client.crt --key client.key --cacert ca.crt]
+python agent.py secrets
+python agent.py tls
+python agent.py full [--endpoint https://127.0.0.1:2379]
+```
+
+## Core Functions
+
+### `check_etcd_encryption(kubeconfig)` — Verify encryption at rest
+Inspects kube-apiserver pod args for `--encryption-provider-config`, audit logging, TLS.
+
+### `check_etcd_access(endpoint, cert, key, cacert)` — Test access controls
+Uses etcdctl to check health and test for unauthenticated read access.
+CRITICAL finding if data readable without credentials.
+
+### `dump_secrets_check(kubeconfig)` — Audit stored secrets
+Lists all cluster secrets, categorizes by type, identifies sensitive naming patterns.
+
+### `check_etcd_tls_config()` — Verify TLS certificates
+Checks etcd pod args for peer TLS, client TLS, and client certificate authentication.
+
+### `full_assessment(kubeconfig, endpoint)` — Comprehensive security scan
+Combines all checks into single report with risk level classification.
+
+## Security Checks
+| Check | Flag | Risk |
+|-------|------|------|
+| Encryption at rest | --encryption-provider-config | CRITICAL if missing |
+| Client TLS | --cert-file / --key-file | HIGH if missing |
+| Peer TLS | --peer-cert-file / --peer-key-file | HIGH if missing |
+| Client cert auth | --client-cert-auth=true | MEDIUM if missing |
+| Unauthenticated access | etcdctl get without certs | CRITICAL |
+
+## Dependencies
+System: kubectl, etcdctl (etcd client)
+No Python packages required.